Harry Potter and the Chamber of Secrets
"So anyway," a stout boy was saying, "I told Justin to hide up in our dormitory. I mean to say, if Potter's marked him down as his next victim, it's best if he keeps a low profile for a while. Of course, Justin's been waiting for something like this to happen ever since he let slip to Potter he was Muggle-born. Justin actually told him he'd been down for Eton. That's not the kind of thing you bandy about with Slytherin's heir on the loose, is it?
"You definitely think it is Potter, then, Ernie?" said a girl with blonde pigtails anxiously.
"Hannah," said the stout boy solemnly, "he's a Parselmouth. Everybody knows that's the mark of a Dark wizard. Have you ever heard of a decent one who could talk to snakes? They called Slytherin himself Serpent-tongue."
There was some heavy murmuring at this, and Ernie went on, "Remember what was written on the wall? Enemies of the Heir, Beware. Potter had some sort of run-in with Filch. Next thing we know, Filch's cat is attacked. That first year, Creevey, was annoying Potter at the Quidditch match, taking pictures of him while he was lying in the mud. Next thing we know – Creevey's been attacked." (11.136-139)
Moaning Myrtle was crying, if possible, louder and harder than ever before. She seemed to be hiding down her usual toilet. It was dark in the bathroom because the candles had been extinguished in the great rush of water that had left both walls and floor soaking wet. (13.21)